Slashdot contributor Bennett Haselton writes
"A recent webinar for newsletter publishers suggested that if you want your emails not to be blocked as 'spam,' you paradoxically have to engage in some practices that contribute to the erosion of users' privacy, including some tactics similar to what many spammers are doing. The consequences aren't disastrous, but besides being a loss for privacy, it's another piece of evidence that free-market forces do not necessarily lead to spam filters that are optimal for end users."
Read on for the rest of Bennett's thoughts.